FORD 2013 Fusion Hybrid v.2 - Manual (Page 140)

Using the Engine Block Heater
The engine block heater plug is located in
a housing in the left fog lamp bezel. Open
the hinged, circular door and make sure
the receptacle terminals are clean and dry
prior to use. Clean them with a dry cloth if
necessary.
The heater uses 0.4 to 1.0 kilowatt-hours
of energy per hour of use. The system does
not have a thermostat. It will achieve
maximum temperature after
approximately three hours of operation. If
you use the heater longer than three hours,
this will not improve system performance
and will use unnecessary electricity.
137
Starting and Stopping the Engine